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Electrical systems

STC SA10921SC

FAA DRS lists SA10921SC as Current · Reissued, held by Hartzell Engine Technologies, LLC, for AD Holdings T-211, Aerodifusion SL D-1190S, and Aircraft Parts & Development Corp A-3, and 37 more aircraft configurations. Recorded change: Installation of an alternator and regulator as a replacement to existing OEM generators and mechanical voltage regulators. Snapshot dated June 30, 2026.

FAA-listed holder
Hartzell Engine Technologies, LLC
Aircraft configurations
40
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of an alternator and regulator as a replacement to existing OEM generators and mechanical voltage regulators.

SA10921SC identifies the approval, recorded holder, named aircraft, and modification scope. It does not confirm kit availability, serial-number effectivity, data rights, price, or installation authority.

Applicability

Aircraft named in FAA DRS

Named aircraft: AD Holdings T-211, Aerodifusion SL D-1190S, and Aircraft Parts & Development Corp A-3, and 37 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

AD Holdings T-211A-791Aerodifusion SL D-1190SA11INAircraft Parts & Development Corp A-3A-758All American Aircraft 10AA-792American Champion Aircraft Corp 402A3CEAmerican Champion Aircraft Corp 7ECA-759American Champion Aircraft Corp 7ECAA-759American Champion Aircraft Corp 7FCA-759American Champion Aircraft Corp 7JCA-759American Champion Aircraft Corp S7ECA-759Avions Jodel 150A14INAvions Jodel D-1190A10INAvions Jodel DR-1050A4INBeechcraft 35A-777Beechcraft 35RA-777Beechcraft 45 (Military YT-34)5A3Beechcraft A35A-777Beechcraft B35A-777Beechcraft C35A-777Beechcraft D35A-777Beechcraft E35A-777Beechcraft F35A-777Beechcraft G35A-777Cessna Aircraft 120A-768Cessna Aircraft 140A-768Cessna Aircraft 140A5A2Cessna Aircraft 1503A19Cessna Aircraft 150A3A19Cessna Aircraft 150B3A19Cessna Aircraft 150C3A19Cessna Aircraft 150D3A19Cessna Aircraft 150E3A19Cessna Aircraft 150F3A19Cessna Aircraft 150G3A19Cessna Aircraft 150H3A19Cessna Aircraft 150J3A19Cessna Aircraft 150K3A19Cessna Aircraft 150L3A19Cessna Aircraft 150M3A19Cessna Aircraft 170A-799

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact AD Holdings T-211 and Aerodifusion SL D-1190S, and 38 more aircraft configurations model, serial range, and configuration?
  2. 02Which load analysis, wiring changes, protection, and limitations apply?
  3. 03Who can legally supply the design data, kit, instructions, and ICAs?
  4. 04What parts, labor, conformity, and return-to-service work are excluded?

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